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Alenkinab [10]
4 years ago
12

. Question 1.1. What is the first step in solving x2 + 2x + 3 = 0 by completing the square?. (Points : 1). Factor the left side.

. . Add 1 to each side of the equation.. . Divide both sides of the equation by 2.. . Subtract 3 from each side of the equation..
Mathematics
2 answers:
Assoli18 [71]4 years ago
6 0
U r going to subtract 3 from each side of the equation....leaving you with :
x^2 + 2x = -3
Arturiano [62]4 years ago
6 0
The first step to solving an equaiton of the form<span>ax2+bx+c = 0</span>is by completing the square by first dividing by a, giving<span>x2+bx/a+c/a = 0 
then subtract c/a to both sides.

</span>In this regard, the first step to the equation is to C. <span>. Subtract 3 from each side of the equation..</span>
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Plz hel p me my class is counting on me(you)
solniwko [45]

Answer:

The correct answer is D because  for example...

Step-by-step explanation:

If b squared minus 4ac is non-negative, so at 0 or greater, we have at least one real solution. If it's less than 0, if it's negative, we have no real solutions!

Hope I was able to help, and I hope you Have a good day! :)

7 0
3 years ago
Fill in the blanks to make an arithmetic sequence
Arlecino [84]
-----------------------------------------
General Equation:
-----------------------------------------
T_n = a_1 + d(n - 1)

-----------------------------------------
Find d :
-----------------------------------------
a_1 = 11, T_7 = 79,
T_7 = 11 + d(7 - 1)
-79 = 11 + 6d
6d = -79 - 11
6d = -90
d = -15

-----------------------------------------
Find general equation :
-----------------------------------------
T_n = 11 + (-15)(n - 1)
T_n = 11 -15n + 15
T_n = 26 -15n

-----------------------------------------
Find the sequence :
-----------------------------------------
T_1 = 26 - 15(1) = 11
T_2 = 26 - 15(2) = -4
T_3 = 26 - 15(3) = -19
T_4 = 26 - 15(4) = -34
T_5 = 26 - 15(5) = -49
T_6 = 26 - 15(6) = -64
T_7 = 26 - 15(7) = -79

---------------------------------------------------------
Answer: 11, -4, -19, -34, -49, -64, -79
---------------------------------------------------------

4 0
3 years ago
Plz help me and explain how you got your answer thx
mixas84 [53]

Answer:

The correct answer would be C = 533,800

Step-by-step explanation:

The formula for circumference is C = 2πr. To find the radius you must divide the diameter by 2.

Radius = 85000

now we have C = 2 * 85000 * 3.14

C = 533,800

<em>Scientific Formula = 5.338 x 10^6</em>



5 0
3 years ago
a store sells pencils pens and markers that sells two times as many markers as pencils and three times as many pens as pencils i
max2010maxim [7]

Answer:

325 pencils, 650 markers, 975 pens

Step-by-step explanation:

in picture.

8 0
3 years ago
PLEASE HELP ME :( I DONT UNDERSTAND! A teacher already had a certain number of canned goods for the food drive. Each day of the
Fantom [35]
20 should be the answer because 205 divided by 10 =20
3 0
4 years ago
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